package com.hmdp.service.impl;

import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hmdp.utils.RedisConstants;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 虎哥
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    //实现商户类型查询
    @Override
    public List<ShopType> typeQuery() {
        String s = stringRedisTemplate.opsForValue().get("cache:shop:type:");
        if (StrUtil.isNotBlank(s)) {
            List<ShopType> shopTypes = JSONUtil.toList(s, ShopType.class);
            return shopTypes;
        }
        List<ShopType> shopTypes = query().orderByAsc("sort").list();
        if (shopTypes != null) {
            stringRedisTemplate.opsForValue().set("cache:shop:type:", JSONUtil.toJsonStr(shopTypes),
                    RedisConstants.CACHE_SHOP_TTL, TimeUnit.MINUTES);
            return shopTypes;
        }
        return null;
    }
}
